屏幕实在太亮了,眼睛都快瞎了,真心试了各种方法无效后才来问.怀疑是bug

[ghking]

1.我是unbuntu衍生版本backtrack5安装到hp-g4-1061tx笔记本硬盘上的.
2.我把鼠标移到brightness applet上时提示cannot get laptop panel brightness
3.用键盘快捷键无效包括在字符界面也无效
3.我的/sys/class/backlight文件夹里什么都没有
4.我试了在grub里添加了acpi_backlight=vendor无效
5.我用lsmod可以看见video模块
6.有什么setpci XX:XX:XX 这些也是不行的.
7.在我的/var/log/syslog文件里这段含有错误信息的日志总是重复出现：
Mar 2 06:51:36 bt kernel: [ 11.056983] rts_pstor: waiting for device to settle before scanning
Mar 2 06:51:36 bt kernel: [ 11.137273] ACPI Error: Field [D128] at 1040 exceeds Buffer [NULL] size 160 (bits) (20110623/dsopcode-236)
Mar 2 06:51:36 bt kernel: [ 11.137292] ACPI Error: Method parse/execution failed [\_SB_.WMID.HWMC] (Node ffff880158a3e938), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.137320] ACPI Error: Method parse/execution failed [\_SB_.WMID.WMAD] (Node ffff880158a3eca8), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.137418] ACPI Error: Field [D128] at 1040 exceeds Buffer [NULL] size 160 (bits) (20110623/dsopcode-236)
Mar 2 06:51:36 bt kernel: [ 11.137432] ACPI Error: Method parse/execution failed [\_SB_.WMID.HWMC] (Node ffff880158a3e938), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.137452] ACPI Error: Method parse/execution failed [\_SB_.WMID.WMAD] (Node ffff880158a3eca8), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.137599] input: HP WMI hotkeys as /devices/virtual/input/input6
Mar 2 06:51:36 bt kernel: [ 11.138108] ACPI Error: Field [D128] at 1040 exceeds Buffer [NULL] size 160 (bits) (20110623/dsopcode-236)
Mar 2 06:51:36 bt kernel: [ 11.138131] ACPI Error: Method parse/execution failed [\_SB_.WMID.HWMC] (Node ffff880158a3e938), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.138164] ACPI Error: Method parse/execution failed [\_SB_.WMID.WMAD] (Node ffff880158a3eca8), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.138319] ACPI Error: Field [D128] at 1040 exceeds Buffer [NULL] size 160 (bits) (20110623/dsopcode-236)
Mar 2 06:51:36 bt kernel: [ 11.138341] ACPI Error: Method parse/execution failed [\_SB_.WMID.HWMC] (Node ffff880158a3e938), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.138374] ACPI Error: Method parse/execution failed [\_SB_.WMID.WMAD] (Node ffff880158a3eca8), AE_AML_BUFFER_LIMIT (20110623/psparse-536)
Mar 2 06:51:36 bt kernel: [ 11.622064] psmouse serio1: synaptics: Touchpad model: 1, fw: 7.5, id: 0x1e0b1, caps: 0xd00073/0x240000/0xa0400
还有这句：Mar 2 11:10:33 bt kernel: [ 0.803721] pci0000:00: ACPI _OSC request failed (AE_ERROR), returned control mask: 0x1d

[ghking]

还有具体一点的信息看看贴吧吧：http://tieba.baidu.com/p/2240249964

[meteormatt]

看人家说好像是ACPI出了问题。

[neoh]

F.lux 软件可以根据 当地 一天24小时调节屏幕亮度 有linux版 只在Win7用过 晚上效果挺好

sudo add-apt-repository ppa:kilian/f.lux
sudo apt-get update
sudo apt-get install fluxgui

http://stereopsis.com/flux/linux.html